20213580

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{29}}^1\times {\mathrm{11617}}^1$

素因数の和:11658

約数の個数: 48

約数和(自身を含む): 58554720

約数和(自身を除く): 38341140

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 29, 30, 58, 60, 87, 116, 145, 174, 290, 348, 435, 580, 870, 1740, 11617, 23234, 34851, 46468, 58085, 69702, 116170, 139404, 174255, 232340, 336893, 348510, 673786, 697020, 1010679, 1347572, 1684465, 2021358, 3368930, 4042716, 5053395, 6737860, 10106790, 20213580]

約数ペア:

[(1, 20213580), (2, 10106790), (3, 6737860), (4, 5053395), (5, 4042716), (6, 3368930), (10, 2021358), (12, 1684465), (15, 1347572), (20, 1010679), (29, 697020), (30, 673786), (58, 348510), (60, 336893), (87, 232340), (116, 174255), (145, 139404), (174, 116170), (290, 69702), (348, 58085), (435, 46468), (580, 34851), (870, 23234), (1740, 11617)]